George has a small coin collection. He has collected 16 gold coins, 28 silver coins, 32 copper coins, and4 bronze coins. At a flea market, George sells 15% of his coins. Find the number of coins he sold.

Carlos is saving up to buy two new books. He has saved 60% of the cost of one book costs $18 and 30% of the costs of another book that costs $21. How much more does he need to save?

In which line is a mistake first made when solving the quadratic equation using the quadratic formula?

What is the expected number of 3's when a fair 6-sided die is tossed 60 times?

Find the length of the indicated side. 3x + 23 8x - 2 The length of side KL is.

the temperature was 8F. it dropped so that the temperature was 0F * blank*F represents the change in temperature

Find the rate of change for the solution you run 7 miles in one hour and 14 miles in two hours

Express 12,312,087 in words

Ian finds 9$ for each hour he works and 10$ for each day he works. To find out how much he makes in a day, he made the equation y=9x+10x, where x is the number of hours he works.

N 2008, the Queen Sesheshet Pyramid was discovered in Egypt. Archeologists determined that the original height of this right square pyramid was about 14 m and the original base side length was about 22 m.

Solve this system - 10x, 5x by elimination